diff --git a/README.md b/README.md
index 0cc25091e..ffa81f989 100644
--- a/README.md
+++ b/README.md
@@ -85,7 +85,7 @@ If every IoT device has a Shifu with it, we can leverage software to manage our
 
 ## Contact
 
-Feel free to open a GitHub issue or contact us in the following ways:
+Feel free to open a [GitHub issue](https://github.com/Edgenesis/shifu/issues/new) or contact us in the following ways:
 - Email: info@edgenesis.com
 - Wechat:
   - zhengkaiwen196649 
diff --git a/deviceshifu/pkg/deviceshifu/deviceshifu.go b/deviceshifu/pkg/deviceshifu/deviceshifu.go
index 11a75c345..ee3285ff5 100644
--- a/deviceshifu/pkg/deviceshifu/deviceshifu.go
+++ b/deviceshifu/pkg/deviceshifu/deviceshifu.go
@@ -61,6 +61,7 @@ const (
 	KUBERNETES_CONFIG_DEFAULT         string = ""
 )
 
+// This function creates a new Device Shifu based on the configuration
 func New(deviceShifuMetadata *DeviceShifuMetaData) (*DeviceShifu, error) {
 	if deviceShifuMetadata.Name == "" {
 		return nil, fmt.Errorf("DeviceShifu's name can't be empty\n")
@@ -100,6 +101,7 @@ func New(deviceShifuMetadata *DeviceShifuMetaData) (*DeviceShifu, error) {
 			return nil, err
 		}
 
+		// switch for different Shifu Protocols
 		switch protocol := *edgeDevice.Spec.Protocol; protocol {
 		case v1alpha1.ProtocolHTTP:
 			for instruction, properties := range deviceShifuConfig.Instructions {
@@ -158,6 +160,7 @@ func New(deviceShifuMetadata *DeviceShifuMetaData) (*DeviceShifu, error) {
 	return ds, nil
 }
 
+// deviceHealthHandler writes the status as healthy
 func deviceHealthHandler(w http.ResponseWriter, r *http.Request) {
 	fmt.Fprintf(w, DEVICE_IS_HEALTHY_STR)
 }
@@ -172,6 +175,12 @@ func instructionNotFoundHandler(w http.ResponseWriter, r *http.Request) {
 	http.Error(w, "Error: Device instruction does not exist!", http.StatusNotFound)
 }
 
+// This function is to create a URL containing directives from the requested URL
+// e.g.:
+// if we have http://localhost:8081/start?time=10:00:00&target=machine1&target=machine2
+// and our address is http://localhost:8088 and instruction is start
+// then we will get this URL string:
+// http://localhost:8088/start?time=10:00:00&target=machine1&target=machine2
 func createUriFromRequest(address string, handlerInstruction string, r *http.Request) string {
 
 	queryStr := "?"
@@ -191,6 +200,7 @@ func createUriFromRequest(address string, handlerInstruction string, r *http.Req
 	return "http://" + address + "/" + handlerInstruction + queryStr
 }
 
+// This function executes the instruction by requesting the url returned by createUriFromRequest
 func (handler DeviceCommandHandlerHTTP) commandHandleFunc() http.HandlerFunc {
 	return func(w http.ResponseWriter, r *http.Request) {
 		handlerProperties := handler.deviceShifuHTTPHandlerMetaData.properties
diff --git a/deviceshifu/pkg/deviceshifu/deviceshifu_config.go b/deviceshifu/pkg/deviceshifu/deviceshifu_config.go
index 861240e04..8e900dee2 100644
--- a/deviceshifu/pkg/deviceshifu/deviceshifu_config.go
+++ b/deviceshifu/pkg/deviceshifu/deviceshifu_config.go
@@ -61,6 +61,7 @@ const (
 	EDGEDEVICE_RESOURCE_STR = "edgedevices"
 )
 
+// Read the configuration under the path directory and return configuration
 func NewDeviceShifuConfig(path string) (*DeviceShifuConfig, error) {
 	if path == "" {
 		return nil, errors.New("DeviceShifuConfig path can't be empty")
diff --git a/driver_util/http_to_ssh_stub.go b/driver_util/http_to_ssh_stub.go
index fe9ee688e..f61d3dee5 100644
--- a/driver_util/http_to_ssh_stub.go
+++ b/driver_util/http_to_ssh_stub.go
@@ -12,6 +12,7 @@ import (
 	"golang.org/x/crypto/ssh"
 )
 
+// Get the required configuration from the environment variables
 var (
 	privateSSHKeyFile    = os.Getenv("EDGEDEVICE_DRIVER_SSH_KEY_PATH")
 	driverHTTPPort       = os.Getenv("EDGEDEVICE_DRIVER_HTTP_PORT")
@@ -77,6 +78,9 @@ func main() {
 	http.Serve(ssh_listener, httpCmdlinePostHandler(sshClient))
 }
 
+// Create a session reply for the incoming connection, obtain the connection body information,
+// process it, hand it over to the shell for processing,return both result and status code based
+// on shell execution result
 func httpCmdlinePostHandler(sshConnection *ssh.Client) http.HandlerFunc {
 	return func(resp http.ResponseWriter, req *http.Request) {
 		session, err := sshConnection.NewSession()